• 대한족부족관절학회지
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• 제19권4호
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• pp.156-160
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• 2015

Purpose: We compared plain radiographs with computed tomography (CT) images to evaluate the usefulness of preoperative CT in acute ankle malleolar fracture in terms of accuracy of diagnosis and planning of operative strategy. Materials and Methods: A retrospective analysis was conducted on 210 cases of malleolar fracture treated at our institute for which plain radiograph and CT were obtained preoperatively. Observers had reviewed plain radiographs and recorded fracture classification, anatomical diagnosis, extent and configuration of fractures and then subsequently reviewed CT images. Records from each image were compared and information regarding the differences in fractures was assessed. Results: Fractures were notably changed in appearance in 88 cases (41.9%) and diagnosis changed in 30 cases (14.3%). According to the change of diagnosis and fracture appearances, the operative strategy was changed in 15 cases (7.1%) including incision, order of reduction, and target of fixation. Conclusion: CT could be a useful adjunctive imaging tool in addition to the plain radiograph in planning of operative treatment for acute malleolar fracture in terms of estimating exact configuration, extent of fractures and even newly revealed hidden fractures.

• 치과방사선
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• 제27권2호
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• pp.83-90
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• 1997

This study was performed to demonstrate the effect of linear or nonlinear contrast enhancement on subtraction images. Three different textures were radiograped on dental film. The first radiograph was taken without the presence of an object. the second, which showed trabucular bone, was taken of the molar area of a human. the third radiograph was taken of the coronal part of molars. Each film was digitized into a 1312 x 1024 pixel x 8 bit depth matrix by means of a Nikon 35 mm film scanner(LS-3510AF, Japan) with fixed gain and internal dark current correction to maintain constant illumination. The scanner was interfaced to a Macintosh Le ill computer(Apple Computer, Charlotte, N.C) This resulted in three pairs of images, including different textures-plain, bone and enamel. Digital regular, linearly and nonlinearly enhanced subtraction was performed. Computer software was ,used to simulate lesions in the shape of a 2D-Gaussian curve on each of a pair of images. The each subtraction images were presented in a random sequence to two groups of 10 observers(students and dentists). ROC analysis was used to compare observer performance. The following results were obtained ; 1. All of LCE subtraction, equalized subtraction and regular subtraction images of plain texture were diagnosed the best by far. 2. The data revealed a siginificant LCE effect in both the student group and the expert group. 3. Clinical expertise was a helphul factor for the observers in this study.

• Pediatric Infection and Vaccine
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• 제24권3호
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• pp.178-182
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• 2017

우리나라에서 폐흡충증은 1960년대 까지만 해도 매우 흔하여 폐의 공동 병변을 일으키는 주요 감염 원인이었으나 현재는 매우 드문 감염병이 되었다. 16세 남자가 갑자기 열감, 기침, 객혈이 발생하여 가슴 X-선 영상검사를 실시하였고, 공기음영(air bubble)을 포함하고 있는 결절과 간유리 음영으로 세균학적으로 결핵균이 확인되지 않았으나 결핵으로 진단받고 항결핵제로 치료를 받았다. 항결핵제 치료 후에 더 이상 기침 등의 증상은 호소하지 않았으나 가슴 X-선 영상검사와 가슴 컴퓨터단층촬영검사에서 병변이 악화되어 비디오 흉강경 구역절제술을 실시 받았으며 조직검사에서 폐흡충란이 발견되어 폐흡충증으로 진단된 증례를 경험하여 보고하고자 한다.

• Clinics in Shoulder and Elbow
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• 제24권1호
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• pp.15-20
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• 2021

Background: The presence of an acromial spur implies a rotator cuff disorder due to impingement between the acromial spur and the rotator cuff. The purpose of the study was to observe acromial spurs using ultrasonography and to compare measurements between plain radiographs and sonograms. Methods: We retrospectively enrolled 51 consecutive patients with acromial spurs, which were interpreted on preoperative plain radiographs (supraspinatus outlet view and 30° caudal tilt) and preoperative sonograms. The ultrasonography transducer was held vertically and continuously moved laterally, which corresponded to the long axis of the long head of the biceps. The distance from the most distal margin of the original acromion to the most projected point of the acromial spur was measured. Results: No significant difference was found between the plain radiograph and ultrasonography measurements (p=0.186). A moderate to strong correlation was detected between the ultrasonography and supraspinatus outlet-view measurements (r=0.776, p=0.000). Conclusions: Anteriorly projected acromial spurs were well-visualized by ultrasonography. No discrepancy in acromial spur length was detected between the use of plain radiography (supraspinatus outlet view and 30° caudal-tilt view) and ultrasonography. The correlation coefficients between the plain radiography and ultrasonography measurements exceeded 0.7.

• 한국임상수의학회지
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• 제37권4호
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• pp.227-230
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• 2020

A 8-year-old spayed female Korean short-haired cat was presented with respiratory distress. CBC, serum chemistry analysis, plain radiography, and abdominal ultrasonography were performed. Besides hypertrophic cardiomyopathy (HCM) suspected by the thoracic radiograph, a tubular, tortuous soft tissue structure was detected at the region of the left retroperitoneal cavity on the abdominal radiograph. On the abdominal ultrasonography, a shunt vessel is identified caudo-lateral to the left kidney region. These findings are consistent with spleno-systemic shunts in cats. Furthermore, portal hypertension and diffuse hepatic lesion were also identified. Although the cause of a shunt vessel is not easy to diagnose, it is important to include spleno-systemic shunt into differential diagnosis list, when convoluted, tubular soft tissue opacity is seen on the digital radiography (DR). This report will allow clinicians to raise awareness of complications of portosystemic shunt (PSS) and better treat PSS suspected feline patients when the advanced modalities such as computed tomography and magnetic resonance imaging are not available.

• 한방안이비인후피부과학회지
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• 제21권3호
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• pp.140-149
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• 2008

Objective : This study was performed to find out the difference of symptoms between rhinitis and sinusitis in young patients who were diagnosed by PNS plain radiograph( PNS series), Methods: We did statistical analysis about 147 new outpatients under 12 year-old who had visited the department of ophthalmology, otolaryngology, dermatology in Kyung Hee Oriental Medicine Center from March 2, 2006 to February 29, 2008. All of the patients were diagnosed by PNS series and we divided the patients with two groups; rhinitis group and sinusitis group. We checked the OPD records and explore the distribution on sex, experience of past western therapy, age and duration. Then we divided symptoms into nine; 'nasal obstruction', 'purulent rhinorrhea', 'cough & sneezing', 'watery rhinorrhea', postnasal drip', 'sputum', 'head problem', 'snoring & throat discomfort' and 'epistaxis'. We also divided age into 2 groups: $0\sim7$ years old and $8{\sim}12$ years old. We carried out chi-square test as a statistical method. Results : The results were as follows. 1. Sinusitis group were 102(69.5%); 62 have only sinusitis. 40 have both sinusitis and adenoidal hypertrophy. Rhinitis group were 45(30.5%); 13 have adenoidal hypertrophy and 32 were negative. 2. Male were 98(sinusitis 65, rhinitis 33), female were 49(sinusitis 37, rhinitis 12). 3. Patients who had experienced past western therapy were 120(sinusitis 81, rhinitis 39), no experienced patients were 27(sinusitis 21, rhinitis 6). 4. Distribution on age of sinusitis was 1(1 yr), 2(2 yrs), 3(3 yrs), 15(4 yrs), 15(5 yrs), 23(6 yrs), 13(7 yrs), 12(8 yrs), 8(9 yrs), 5(10 yrs), 1(11 yrs), 4(12 yrs). Distribution on age of rhinitis was 1(1 yr), 0(2 yrs), 1(3 yrs), 1(4 yrs), 9(5 yrs), 5(6 yrs), 3(7 yrs), 5(8 yrs), 1(9 yrs), 8(10 yrs), 6(11 yrs), 5(12 yrs), 5. Duration of sinusitis was 20(<2 months), 6($2{\sim}3$ months), 11($3\sim6$ months), 34($6\sim12$ months), 31(>12 months) and of Rhinitis was 11(<2 months), 0($2\sim3$ months), 5($3\sim6$ months), 18($6\sim12$ months), 11(>12 months) 6. Distribution on symptoms, sinusitis patients were 86(nasal obstruction), 52(purulent rhinorrhea), 46(cough & sneezing), 38(watery rhinorrhea), 41(postnasal drip), 23(sputum), 18(head problem), 15(snoring & throat discomfort), 6(epistaxis). The each symptom and sinusitis have no relation by chi-square test. 7. The number of patients who were 0 $\sim$ 7 years old was 92: sinusitis 72(49%), non-sinusitis 20(13.6%). The number of patients who were 8 $\sim$ 12 years old was 58: sinusitis 30(20.4%), non-sinusitis 25(l7%). By chi-square test(confidence level 95%), sinusitis and age under 7 have a significant relation(p=0.003). Conclusions : There is no relation between rhinologic symptoms and sinusitis. Patients under 7 years old with rhinologic symptoms tend to have sinusitis.

• Journal of Korean Neurosurgical Society
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• 제59권3호
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• pp.219-226
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• 2016

The purpose of this article is to review imaging findings and to discuss the optimal imaging methods for craniosynostosis. The discussion of imaging findings are focused on ultrasonography, plain radiography, magnetic resonance imaging and computed tomography with 3-dimensional reconstruction. We suggest a strategy for imaging work-up for the diagnosis, treatment planning and follow-up to minimize or avoid ionized radiation exposure to children by reviewing the current literature.

• Journal of Korean Neurosurgical Society
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• 제30권12호
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• pp.1417-1421
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• 2001

Objective : The purposes of this study are to compare imaging features with operative findings and to determine significance of imaging studies for early detection of craniosynostosis(CS). Methods : Plain radiograph of skull and three-dimensional(3D) CT reconstruction were analyzed in 10 consecutive patients with CS to assess the presence and the extent of synostosis. The radiological findings were investigated and compared with operative findings. Results : The locations of lesion were coronal suture in 6, sagittal suture in 3 and multiple sutures in one patient, and the age ranged 1 to 53 months(mean age : 17.4 months). Reconstructive procedures with or without advancement of supraorbital rim were performed in coronal CS patients and ${\pi}$-procedures or synostectomy were done in sagittal CS patients. Radi-ological abnormalities such as sutural indistinctness or sclerosis, bony ridge, bossing and other bony deformities were nearly consistent with surgical findings. Conclusion : The interpretation of imaging study are very important for early detection of craniosynostosis, especially, the plain radiographs of skull. Also 3D CT imaging is helpful in diagnosis and surgical planing of craniosynostosis. There are no significant differences between imaging features and operative findings in CS patients.

• 대한족부족관절학회지
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• 제11권2호
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• pp.145-148
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• 2007

Purpose: This retrospective study was designed to evaluate the appearances of plantar fasciitis by ultrasonography. Materials and Methods: 48 cases of unilateral plantar fasciitis were enrolled in this study. Plain radiograph and realtime sonography of both feet were perfomred and the results were compared between the affected feet and controlateral symptomless feet. Calcaneal spur were observed on plain radiograph and thickness of plantar fascia, hypoechogenecity, blurring of border of plantar fascia, perifascial effusion, wavy plantar fascia were observed on sonography. Results: Women (35 cases) and left feet (30 cases) were more frequent than men and right feet. Thickness of plantar fascia in affected site was thicker than normal site (p<0.01). Hypoechogenecity was observed only in 39 cases (81%) affected site, blurring of border of plantar fascia in affected site was 30 cases (62%) and 7 cases (15%) in normal site, perifascial effusion was observed only in 38 cases (79%) affected site, wavy plantar fascia in affected site was 43 cases (90%) and 2 cases (4%) in normal site. Calcaneal spur in affected site was 36 cases (75%) and 33 cases (69%) in normal site. Conclusion: Sonography is a useful diagnostic procedure for the plantar fasciitis especially in the unilateral plantar fasciitis.

• Archives of Plastic Surgery
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• 제39권4호
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• pp.390-396
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• 2012

Background The radial forearm osteocutaneous free flap is considered to be the standard technique for penile construction. One year after their operation, most patients experience a softened phallus, so that they suffer from difficulties in sexual intercourse. In this report, we present our experience with phalloplasty by radial forearm osteocutaneous free flap, as well as an evaluation of the etiology and treatment of the softened phallus. Methods Between March 2005 and February 2010, 58 patients underwent phalloplasty by radial forearm osteocutaneous free flap. Most of their neophallus had been softened subjectively and among them, 12 patients who wanted correction were investigated. We performed repetitive fat injection, artificial dermis grafting, silicone rod insertion, and rib bone with cartilaginous tip graft. Physical examination, plain radiograph, computed tomography, bone scintigraphy, and satisfaction scores were investigated. Results Most of the participants' penises have been softened after phalloplasty, and the skin elasticity had been also decreased. On plain radiograph, the distal end of the bone was self-rounded; however, the bone shape of the neophallus had no significant interval changes or resorption. Computed tomography showed equivocal density of cortical bone. On bone scintigraphy, the bone metabolism was active at 3 months postoperatively, and remained active 9 years postoperatively. Conclusions The use of a rib bone with cartilaginous tip graft could be an option for improvement of the softened phallus. Silicon rod insertion is also worth considering for rigidity of the softened phallus. Decreased rigidity due to soft tissue atrophy could be alleviated with repeated fat injection and artificial dermis grafting.